Stannol Solder Solder, lead-free 625348 - Stannol 576102, Stannol ZV16 Solder is a lead-free soldering wire, primarily composed of 99.3% tin and 0.7% copper. Manufactured by Stannol, this high-quality solder is ideal for electronic soldering tasks requiring reliable and environmentally friendly materials. It is typically used for general electronics and circuit board applications. Stannol 576102 ZV16 Solder Wire Lead-Free Sn99.3Cu0.7 250g 1mm Flux-Filled